查询词典 explicit difference schemes

This paper expounds the problems existing in tamping machines and the improvements of tamping and pushing schemes, and makes comparison of different schemes.

叙述了捣固机械存在的问题以及捣固推焦方案的改进，并对不同的方案进行了比较。

Due to the complexity of the cell jitter, the NonSynchronous Tining Recovery methods are currently not mature With the emphasis being given to the Class A CBR traffic, this paper analyzes the performance of the queueing delay and cell jitter at the source node and intermediate nodes, and discusses the Source Timing Recovery at the destination node in ATM networks Firstly, this paper presents a description of the cell jitter of CBR traffic, and gives the definitions of two kinds of cell jitter regarding the Source Timing Recovery for CBR traffic Then, by using exact mathematical models and analysis methods, this paper analyzes the impact of the factors, such as the capacity of the queueing buffer, the randomness, the deterministic nature and the correlation in cell arrivals of the background traffic sources, on the queueing delay and cell jitter performance of the CBR traffic through Statistical Multiplexitng To obtain an insight into the power spectral distribution and look for better schemes for the depression and filtering of the cell jitter, within the analyses we succeed deriving the power spectrum of the cell jitter for CBR traffic Hence, not only the power spectral distribution of the cell jitter can in the frequency domain be qualitatively understood, but also can the rms (root-meansquare) value of the cell jitter be quantitatively obtained so as to more accurately measure the amplitude of the jitter In the end-to-end performance analysis of the queueing delay and cell jitter, we propose a kind of quasi-periodic cell stream model to characterize the jittered CBR traffic, and present an initial queueing analysis of the CBR traffic following such a model at a generic intermediate node Additionally, we briefly discuss the buildout/playout and Source Timing Recovery functions of the destination node Finally, regarding the Source Timing Recovery of CBR traffic, this paper systematically discusses several important principles of the cell jitter filtering and depression reported in the literature, introduces several implementation schemes of the Source Timing Recovery e.

由于信元抖动的复杂性，非同步定时恢复方法目前还很不成熟。本文针对A类CBR业务流在ATM网络源节点和中间节点的排队时延和信元抖动性能，以及在目的节点的源定时恢复问题作了较为全面的研究。首先，文中描述了CBR业务流的信元抖动，并具体地给出了两种与CBR业务源定时恢复有关的信元抖动的定义。然后，采用了精确的数学模型和分析方法，有针对性地分析了业务背景中信元到达的纯随机性、确定性和相关性以及排队缓存器容量等因素对CBR业务流经过统计复用后的排队时延和信元抖动性能的影响。为了了解信元抖动的功率频谱分布和寻求更好的抑制和滤除抖动的方法，在性能分析中，我们成功地完成了CBR业务流信元抖动的功率谱分析，使得不但可以从频域定性地认识信元抖动的能量分布特性，而且还可以定量地求出信元抖动的均方根值(rms：root-mean-square)，以更为准确地衡量抖动的大小。在CBR业务流的多节点端-端排队时延和信元抖动性能分析中，我们提出了一种准周期性(quasi-periodic)信元流模型来描述感染了信元抖动的CBR业务流，并基于这一模型进行了CBR业务流中间节点的初步排队分析。

In this paper, a comprehensive survey on mobile multicast arithmetics and schemes is given, the advantages and application range of these arithmetics or schemes are discussed respectively, also the shortcomings and problems existed are anatomized in depth, and then a comprehensive comparison is given.

详细地介绍了现有的主要移动组播算法和协议，讨论了每种算法或协议的适应范围以及优点，比较深入地剖析了其中存在的缺陷和问题，并且对这些移动组播算法和协议进行了综合对比。

In order to find more efficient tweakable enciphering schemes and more implementation methods,we propose generalized tweakable enciphering schemes.

为发现更多高效的可调加密方案以及更多的可调加密方案的实现方法，提出广义可调加密方案。

By introducing XOR operation and one-way function chains to group key management schemes based on the keys tree, a new group key management scheme based on the keys tree, XOR operation and one-way function chains is proposed. Initialization, member adding and member evicting operations are introduced. The new scheme is compared with three other group key management schemes which are based on the keys tree:SKDC, LKH, and OFT. As far as transmission, computation and storage costs are concerned, the performance of the new group key management scheme is the best.

摘 要：在基于密钥树的组密钥管理方案中引入了XOR操作以及单向函数链，提出了一种新的基于密钥树、XOR操作以及单向函数链的组密钥管理方案，介绍了新方案中初始化、成员加入以及成员退出的操作，将新方案与3种基于密钥树的组密钥管理方案SKDC，LKH，OFT进行了比较，数据表明：就传输、计算以及存储开销而言，新的组密钥管理方案性能最优。

Then two steganographic schemes with the ability of information authentication are designed by combining with Hash function and digital signature algorithm. Finally, the authentication security of the two schemes under active attacking istheoretical ratiocinated.(5) A public key steganographic system using gray image as the cover-object is developed.

设计了一种以灰度图像为隐秘载体的公钥隐秘通信方案，在嵌入相当大的数据量时，信息隐藏过程仍然较好地保持了原始图像的质量和统计特性，从理论和实验两方面对方案的安全性进行了分析。

Xinhua District, organized by District Trade and Industry Bureau, the District Public Security Bureau has more than 50 mainly the "joint enforcement teams to combat pyramid schemes," pyramid schemes by the district to combat the work of the group leader,...

新华区组织了以区工商局、区公安分局为主的50余人的&打击传销联合执法队&，由区打击传销工作领导小组组长、。。。

By combining the weight vector of all the attributes and the large group preference matrix, an integration evaluation value vector of all the schemes is obtained. From the integration evaluation values in this vector, the ordering result of each scheme is got. The methood solves the problem of multi-attributes and multi-schemes large group decision making better.

将各个属性权重向量和大群体偏好矩阵进行合成，获得各个方案的综合评价值向量，由该向量中的综合评价值得出各方案的综合排序结果，较好地解决了多属性多方案大群体决策问题。

These simulation analyses establish six digging schemes. The results of simulation indicate that the stress changes during the jambs excavation procedure. Also the six schemes compare with each other to determine the preferred scheme. The elementary judgment of the stability of the jambs during the excavation procedure and suggestions for the jambs excavation are made nowadays.

模拟分析制定了六种采掘比选方案，通过对六种方案的模拟及结果的研究对比，确定了优选方案，明确了矿柱开采过程中的应力变化情况，对矿柱在开采过程中的稳定性做出了初步判断，提出了现阶段进行矿柱开采的建设性意见。

Optimization of breeding schemes for quality pig was studied through four parts: fixing on the breeding goal, constructing and optimizing crossbreeding system, optimizing breeding schemes for pure line breeding and reproduction population. Aim of this study was offering theory base and practice guarantee for quality pig breeding and production in China, and improving pork's competition power. Quality pig was that it has high yield, good quality and big safety.

本文通过优质猪育种目标的确定、杂交繁育体系的构建与优化、纯系繁育群育种方案的优化以及优质猪选育的其它环节四部分对优质猪的选育方案进行了优化研究，目的在于为我国优质猪(产量高、质量优且安全的猪)的育种和生产提供理论基础和实践保障，提高猪肉产品的竞争力。

Tom: You are right, he worked hard all the time.

你是对的。他一直都是努力工作。

Take shortcomings,failures,and mockings of others as commonplace and a drive to complete oneself,hold your own opinion over the evalution and disscution divested from others,afterwards sink into the state of eliminate mistakes if any or encourge oneself being not being influenced by the sayinngs of others or having no ideas to do.

把缺点、失败及别人的耻笑等看成是一种常事，当成完善自己的动力，对别人的评价和议论自己心中有主见，做到&有则改之，无则加勉&，不为人言所左右或无所适从。